ASUS notebook hard drive data lost physical bad sectors recovered successfully

Case:
Customer ASUS K45EI323VD notebook, 1T hard disk, memory company business information, but each time the computer process is particularly slow, and finally found that the data stored in it is gone. The engineer checked the hard disk and found that there were bad disks in the hard disk.

Solution:
The engineer first evaluated the degree of damage to the physical bad sectors of the hard disk.When reading the hard disk again, focus on the sector that is not seriously damaged, and provides higher integrity for the recovery of hard disk data.Continue to control the data blocks that have not been read before repeatedly, and check the lack of recovery of the previous recovery work, and make the data block read as close as possible; conduct logical analysis and verification of the full mirror of the hard disk backup of the device.There are inconsistencies in the file system in the image, and the solutions of the corresponding file system damage are fixed until the data required by the user is migrated.